Button-sewing attachment.



No. 882,314. PATENTED MAR. 17, 1908. W. S. (is H. H. HOLDAWAY. BUTTONSEWING ATTACHMENT.

APPLIOATION FILED AUG. 1, 1907.

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UNITED STATES rarnnr orrioE.

WILLIAM S. HOLDAWAY AND HALL H. HOLDAWAY, OF UNION, OREGON.

BUTTON-SEWING ATTACHMENT.

Specification of Letters Patent.

Patented March 17, 1908.

Application filed August 1, 1907. Serial No. 386,544.

To all whom it may concern:

Be it known that we, WVILLIAM S. 1101.1)- AWAY and I'IALL H. HoLnAwAY,citizens of the United States, residing at Union, in the county of Unionand State of Oregon, have invented certain new and useful improvementsin Button-Sewing Attachments, of which the following is a specification.

Our invention relates to improvements in button sewing attachments, andrefers particularly to such a device which is intended for attachment toan ordinary sewing machine, the object of our invention being to providean attachment whereby an ordinary sewing machine may be used for thepurpose of sewing buttons upon garments or other articles at a greatsaving in time and labor.

Another object of our invention is to provide a device of the characterset forth, which is capable of adjustment to receive buttons of varioussizes and shapes, which is strong and simple in construction, and whichwill prove generally useful and desirable.

To attain the desired objects, our invention consists of a bar whichthrough suitable connections from the machine is given a reciprocatingmotion, andin providing the bar with a suitable clamp to receive andhold a button, so that by these means the button is reciprocated and thesewing machine needle is caused toalternately pass through the differentopenings in the button, thereby fastening the button to the fabric.

Our invention further comprises certain other novel features ofconstruction, combination and arrangement of parts substantially asherein disclosed.

Figure 1, is a top plan view of the attach ment. Fig. 2, is a sideelevation thereof. Fig. 3, is a plan view of the reciprocating bar toone end of which is adapted to be clamped the button and the portion ofthe material to which the same is being sewed, the clamping means beingomitted in this view. Fig. 4, is a detail view of the mechanism forcausing movement of the reciprocating bar, and Fig. 5, is a detailsectional view of the attachment on line 55 of Fig. 1.

In the drawings: The numeral 1, designates the base plate of ourattachment which is adapted to be clamped upon the sewing machineadjacent the needle bar thereof. A top plate 2, is mounted upon the baseplate by means of the posts 3, the two plates forming a pair of movementplates between which most of the mechanism is mounted, and journalbrackets 1, are carried by the top plate in which is journaled a rockshaft 5. This rock shaft carries at one end the lover 6, which isadapted to be contacted by the needle bar of the machine, and at theopposite end, a downwardly extending lever 7, which passes through aslot 8, in the top plate and has pivoted to its lower end, the pawl 9.This pawl 9, engages the ratchet wheel 10, fixedly mounted upon thespindle 11, the spindle being j ournaled between the top and base platesand having secured upon its lower portion, the triangular shaped cam 12.The spring 13, holds the pawl in proper engagement with the ratchet, andthe spring 14, acting on the lever arm 7 causes the pawl to be withdrawnafter the rock shaft has been operated by the needle bar. A springpressed dog 15, prevents backward rotation of the ratchet wheel.

A bar or plate 16, is located between the top and base plates, and atthe forward end, this bar is provided with a transverse elliptical slot17, therein. At its opposite end, the bar is provided with an enlargedportion or head having a partially circular opening 18, therein, thecontour of the circle being broken by the pair of oppositely-disposedlips 19, which project inward from opposite sides of the opening. -Thisirregular opening in the bar is adapted to receive the triangular camheretofore described. The bar is further provided with a longitudinalslot or opening 20, about midlength, and the top plate is likewiseprovided with a similar slot 21. A stud or pin 22, provided with aknurled head 23, passes through the slots in the top plate and the barand forms a center upon which the bar is adapted to oscillate. threadednear its head portion and is adjustably secured at any position in theslot of the top plate by means of the lock nuts 24, one on either sideof the top plate.

To the forward end of the oscillatory bar is secured a bracket 25 to theupper end of which is secured a clamping spring 26, by means of thethumb screw 27. This clamping spring extends down over the forwardportion of the bar and is provided with an elliptical opening 28,therein in alinement withthe complementary opening in the bar,througlrwhich openings the needle of the machine is adapted to pass. Alug 29, on the bracket 25, extends up through an opening in the clampingspring and has pivoted thereto an eccentric member 30, which is adaptedThis pin isto depress the spring and clamp the button and the work uponthe oscillatory bar.

The operation of the device is as follows: The attachment is applied tothe machine so 5 that the trip lever 6, will be struck by the needle barin its upward movement which imparts rocking motion to the rock shaftand causes the operating pawl 9, to move the ratchet forward a notch.Thispartial rotation of the ratchet and likewise the cam, causes thetriangular points on the cam to engage the lips. in the irregularopening in the bar and impart oscillating motion to the bar upon theadjustable pin 22, as a center, As the button and fabric are clamped tothe forward end of the oscillatory bar and in the path of the needle,the button is thereby shifted at each upward stroke of the needle, sothat the needle as it descends, alternately passes through the differentopenings in the button and firmly secures the same upon the ,fabric.Confining or guiding pins or lugs 31, at the end of the oscillatory barprevent longitudinal movement of said bar.

Buttons of different sizes or those which have openings therein whichare not similarly spaced, may be readily accommodated by loosening thecentering pin and changing the center of the oscillatory bar so thatsaid bar will vibrate through a greater or lesser arc according torequirements.

From the foregoing description taken in connection with the drawings, itwill be readily apparent that we have accomplished all the objectsherein set forth, and have pro vided a simple, practical, and efficientbutton sewing device to operate in conjunctio with a sewing machine.

WVe claim:

1. A button sewing attachment comprising a pair of movement plates, arock shaft journaled on the upper of said plates and carrying an elementto be moved by contact with a moving part of the sewing machine, a rocklever depending from the end of the shaft and a pawl carried by saidrock lever, a ratchet journaled between the movement plates and atriangular cam carried thereby, an oscillatory bar adjustably pivotedbetween the movement plates, said bar having an irregular partlycircular opening in one end to receive the triangular cam, and atransversely arranged elliptical opening in its opposite end, a springclamp arranged above said elliptical opening in the bar and providedwith a like opening, and a cam for forcing the clamp in engagement withthe bar.

2. A button sewing attachment comprising a pair of movement plates, arock shaft j ournaled on one of said plates and provided with an elementto be moved by contact with a moving part of the machine, a rock leverdepending from the end of the shaft and a pawl carried by said rocklever, a vertical shaft ournaled between the movement plates, a ratcheton said shaft to be engaged by the pawl and a three corneredcam also onthe shaft, an oscillatory bar mounted between the plates, means forchanging the oscillatory center of such bar, said bar having an openingin one end thereof in the shape of a circle the contour of which isbroken by a pair of oppositely arranged transversely disposed inwardlyextending lugs, said opening to receive the three cornered cam and saidlugs to be moved by contact with said cam, the opposite end of the barhaving a transversely disposed elliptical opening therein, a springclamp carried by the bar and having an elliptical opening in alinementwith the one in the bar, and cam mechanism for holding the clamp inengagement with the bar.

In testimony whereof we affix our signatures in presence of twowitnesses.

' WILLIAM S. HOLDAWAY.

HALL H. HOLDAWAY.

Vitnesses:

F. A. BrDwELL, S. L. HUNTER.

